Bobbin and spindle connector



C. NORDELL.

BOBBIN AND SPINDLE CONNECTOR.

APPLICATION FILED AUG.4. 1919.

1,343,839. Patented June 15, 1920.

WITNESSES INVENTOI? far/fl hiv/e/f 4 TTORNEYS CARI. NonDnLL, or GILBERTVILLE, MASSACHUSETTS.

BOBBIN AND SPINDLE CONNECTOR.

Specification of Letters Patent. Patented J 15; 1920;

Application filed August 4, 1919. Serial No. 315,359.

To all whom it may concern: Y

Be it known that I, CARL NORDELL, a cit zen of the United States, and a residentof Gilbertville, in thecounty of Worcester and State of Massachusetts, have invented a new and Improved Bobbin and Spindle Connector, of which the following is a full, clear, and exact description.

This invention relates to improvements in bobbin and spindle connectors, an ob ect of the invention being to provide a bobbin holding mechanism which depends on centrifugal force to form a friction-connectlo'n between the revolving shaft and the bobbin.

A further object is to improve upon the construction disclosed in the prior Patent No. 1,070,982, granted tome August 19, 1913. 1

A further object is to provide a device of the character stated wh ch will be of extremely simple, inexpensive construction, strong and durable in use.

lVith these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a view in side elevation illustrating my improvements Fig. 2 is an enlarged view in vertical longitudinal section through the lower por tion of the spindle and its supporting member;

Fig. 3 is a view in transverse section on the line 8-3 of Fig. 2;

Fig. 4: is a view in transverse section on the line H of Fig. 2; and

Fig. 5 is a view in elevation of one of the arms 16.

1 represents a support having a vertical shaft 2 fixed thereon and also supporting a bushing 3 against which the lower end of a sleeve 1 bears. This sleeve 4: has rotary mounting on the shaft 2 and is driven by means of a pulley 5 secured to its lower portion and operated by a belt 6 or other suitable driving means. The upper end of the pulley 5 is reduced in diameter forming a supporting shoulder 7 supporting a cylindrical shell 8 thereon, which is fixed to turn with the pulley.

This shell 8 comprises a bottom and outer side of an inclosure, the top of which is formed by a ring 9. The ring 9 and the shell 8 are secured around the pulley by means of innerand outer clamping rings 10and 11, which secure between them the flanges 13 and .14 which are bent from thering 9 and shell 8 respectively. In other words, the flange 13 of ring 9 is bent downwardly, while the flange 14 of shell 8 is bent upwardly, and the rings 9 and 10 securely clamp the flanges, as indicated clearly in Fig. 2. 1

The ring 9 is made with a plurality of radialQrecesses 15, shown in F ig. 4:, which accommodate the intermediate portions of arms 16. These arms 16 have weighted lower ends 17 and at their intermediate ortions are provided with notches 18 in their edges which receive the side walls of the recesses 15 and fulcrum thereon- To prevent undue lateral movement of the arms 16 at their fulcrums, a spacing ring 19 is located on the outer portion of the ring 9 and covers the outer portions of the recesses 15. This ring 19 is held in place by means of a casing 20 which is oftwo diameters, the lower larger diameter snugly fitting over the shell 8, and by reason of the two diameters an annular shoulder 21 is formed which bears against the ring 19, the upper or smaller diameter inclosing the upper part of the clutch arms, forming a guard to protect the clutch arms and prevent the thread from building on the base of the bobbin.

The casing 20 has a circular opening 22 in its top receiving the inlarged lower end 23 of bobbin 12. The bobbin 12 fits loosely around the sleeve 1 and its lower end rests upon the ring 9. The upper ends of the arms16 are movable within the casing 20 and are bent at their upper portions forming curved engaging faces 24 adapted to ends of the arms 16 is limited in one direction by the wall of casing 20 and in the other direction by an inwardly projecting flange 26 forming the opening 22 in the shell, as shown clearly in Fig. 2.

Various slight changes may be made in the general form and arrangement of parts described without departing from the invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. In a bobbin holder, a stationary spindle, a rotating sleeve on the spindle, a shell secured to turn with the sleeve, a ring on the upper end of the shell having radial recesses therein, arms having notched edges fulcrumed in said'recesses, a ring secured above the outer portions of the recesses limiting the lateral movement of the arms at their fulcrums, said arms having weights at their lower ends and at their upper ends adapted to engage a spindle mounted on the sleeve.

2. In a bobbin holder, a stationary spindle, a sleeve mounted to turn on the spindle, a pulley fixed to turn with the sleeve, a shell secured around the pulley, a casing supported on the shell and having an opening therein adapted to receive a bobbin, and a plurality of weighted arms having pivotal or fulcruming supports at the point of juncture of the casing and shell, the lower weighted ends of the arms positioned in the shell'and the upper bobbin contacting ends of the arms movable in the casing.

3. A bobbin holder, comprising a rotating sleeve, a pulley on the sleeve, a shell secured to the pulley, a ring on the top of the shell, clamping rings secured to the pulley and engaging the inner edges of the ring and shell,

said first-mentioned ring having radial recesses therein, weighted arms having notched edges engaging the walls of said recesses, a spacing ring positioned over the outer portions of the recesses, and a casing 4 of two diameters, the larger diameter fitting the shell'and the smaller diameter of the casing resting upon-the spacing ring, said arms at their upper ends adapted to engage a bobbin. 1

'4. In a bobbin holder, the combination with a rotary sleeve, a pulley fixed to the sleeve, a shell secured to the pulley, aring on the shell, a casing fitting over the shell and having an opening in its top adapted to re- 5 ceive the lower end of a bobbin when the latter is positioned on the sleeve, and a series of weighted arms fulcrumed in the ring between the casing and the shell and at their upper ends having engaging faces adapted 5 to move against the bobbin when the weighted lower ends are moved outward by centrifugal force.

CARL N ORDELL. 

